Gear transmission-based rolling bearing performance testing device capable of loading alternating load

Abstract

The invention relates to a gear transmission-based rolling bearing performance testing device capable of loading an alternating load. The device comprises a worktable, a rotating shaft supporting mechanism, a rotating shaft, a drive motor and an alternating load loading mechanism, wherein the alternating load loading mechanism comprises a clamping block assembly, a first rotating motor, a second rotating motor, a first gear transmission loading assembly and a second gear transmission loading assembly; the clamping block assembly is arranged outside the rotating shaft in a sleeving manner; thefirst rotating motor and the second rotating motor are arranged on the worktable and respectively positioned on two sides of the clamping block assembly; the first gear transmission loading assembly is arranged between the first rotating motor and the clamping block assembly; and the second gear transmission loading assembly is arranged between the second rotating motor and the clamping block assembly. Compared with the prior art, the gear transmission-based rolling bearing performance testing device disclosed by the invention has the advantages that the alternating load can be loaded to a rolling bearing in the clamping block assembly by the first rotating motor and the second rotating motor by virtue of the first gear transmission loading assembly and the second gear transmission loadingassembly respectively, so that real working conditions of a dynamic load rolling bearing in an internal combustion engine are simulated, and accurate and reliable performance testing results of the rolling bearing are ensured.

Description

technical field [0001] The invention belongs to the technical field of internal combustion engines, and relates to a rolling bearing performance test device based on gear transmission that can be loaded with alternating loads. Background technique [0002] As power equipment, internal combustion engines have been widely used in many industries such as automobiles, ships, aircraft, tanks, railway locomotives, agricultural machinery, construction machinery, generator sets, etc., and occupy a very important position in the national economy. The internal combustion engine includes several pairs of important friction pairs such as piston-cylinder liner, piston ring-cylinder liner, crankshaft-bearing and cam-tappet. Among them, the crankshaft-bearing includes main bearing and connecting rod bearing (due to the working load of this type of bearing The size and direction of the internal combustion engine change with time, so it is usually called a dynamic load bearing), which is one...

AI Technical Summary

Problems solved by technology

At present, the traditional rolling bearing test device has a single loading characteristic and cannot be loaded with variable loads. In real internal combustion engines, dynamically loaded rolling bearings often work under alternating loads. Therefore, traditional rolling bearing performance test devices cannot carry out internal combustion engine loaded rolling bearing tests.

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